plotly / plotly/plotly.py

allow varying marker.line.width in 3DScatter plot

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描述

Varying marker.line.width works nicely in go.Scatter, you're able to specify a different outline width for each point:

works

import plotly.graph_objs as go

x = [1,2,3]
y = [1,2,3]

fig = go.Figure(
          data=[go.Scatter(x=x, y=y,
            mode='markers',
            marker=dict(size=30,
              color=['rgba(100,0,0,.5)','rgba(0,100,0,.5)','rgba(0,0,100,.5)'],
              line=dict(color=['rgb(0,100,0)','rgb(0,0,100)','rgb(100,0,0)'], width=[3,6,9])
            ),
          )])

fig.show()

However in go.Scatter3d this functionally does not work:

import plotly.graph_objs as go

x = [1,2,3]
y = [1,2,3]
z = [1,2,3]

fig = go.Figure(
          data=[go.Scatter3d(x=x, y=y,z=z,
            mode='markers',
            marker=dict(size=30,
              color=['rgba(100,0,0,.5)','rgba(0,100,0,.5)','rgba(0,0,100,.5)'],
              line=dict(color=['rgb(0,100,0)','rgb(0,0,100)','rgb(100,0,0)'], width=[3,6,9])
            ),
          )])

fig.show()

ValueError: Invalid value of type 'builtins.list' received for the 'width' property of scatter3d.marker.line Received value: [3, 6, 9] The 'width' property is a number and may be specified as: - An int or float in the interval [0, inf]

This different functionality is actually reflected in the documentation, but additionally, passing a single value to data[type=scatter3d].marker.line.width does not actually change point outline widths; changing [3,6,9] in the above code to 20 or .5 results in the same graph.

It would be great if go.Scatter3d could behave the same as go.Scatter for this.

I'm using plotly 4.6.0 py_0 plotly
installed 05/05/20 using conda install -c plotly plotly

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  4. 提交 Pull Request,并在描述里引用这个 Issue 编号。

调研方向

从 Scatter3d marker.line.width 的实现开始,并将其与正常工作的 Scatter 行为进行比较。运行提供的 Python 示例,以复现列表值验证错误和标量值不起作用这两种情况;完成的标准是接受每个点的宽度,并且标量宽度能明显改变点的轮廓。

由索引模型根据 Issue 内容生成。

评估

技术栈
python
领域
data-visualization
Issue 类型
缺陷
难度
4/5
预计耗时
3-5 天
活跃度
停滞
描述清晰度
基本清楚
新手友好度
35/100

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